Arsenuranospathite

General Information: Chemical Formula:HAl(UO2)4(AsO4)4·40(H2O) Composition:(Molecular Weight = 2,384.39 gm)Uranium 39.93 % U Aluminum 1.13 % AlArsenic 12.57 % AsHydrogen 3.42 % H Oxygen 42.94 % O  Empirical Formula: HAl(UO2)4(AsO4)4·40(H2O) IMA Status:Approved IMA 1978Physical Properties: Cleavage:[001] Perfect, [100] Distinct Color:white or light yellow. Density:2.54 Diaphaniety:Transparent to Translucent Hardness:2 - Gypsum Luster:Vitreous (Glassy) Streak:whiteMore details...

HAl( O2)4(AsO4)4 40(H2O)